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Exercise 32 Anatomy Of Blood Vessels
Do dilated blood vessels increase perfusion and heatloss, while constricted vessels greatly reduce cutaneous blood?
Vasodilatation&const: Vasodilatation causes at the skin level -heat loss for example in fever, alcohol intoxication . Vasoconstriction reduces conservation of heat by avoiding loss of heat bec. Of the constricted vs which occurs in exposure to cold. Increased perfusion because of the vasodilatation or decreased perfusion with vasoconstr. Are initial natural protective reflexes, lost later if the initial event untrea.Ted. ...Read more
Exercise Or Physical Activity (Definition)
Exercise is a physical activity that is completed to maintain or improve health. Benefits of exercise include weight maintenance, improving mood, increasing energy, preventing or controlling chronic diseases, promoting better sleeping, and improving sex life and libido. ...Read more
See below: The Left anterior descending with its branches, diagonals and septal perforators, the left circumflex with its branches, obtuse marginals, and the right coronary artery with its branches, especially the posterior descending and posterolateral branches. ...Read more
Both cause cyanosis: Both are congenital heart defects that cause cyanosis (less oxygen than normal in the arterial blood.) however that is the only similarity. In transposition of the great arteries, the primary problem is that the aorta arises from the right ventricle instead of the left ventricle. In t(total)apvr, the primary problem is that the pulmonary veins do not connect directly with the left atrium. ...Read more
It doesn't : Affect BP readings.Get a more detailed answer ›
Many differences: LYMPH collecting vessel are thin walled, just the thinnest of intimal lining, and have no media or adventitial covering . Lymph fluid is acellular. Vein can be thin wall but may have media and adventitial layers and carry blood with a variety of cells in it. ...Read more
After cytoxen have shortness of breath. Stress test showed areas of the heart with blood flow problems. Angiogram no blockages. Retaining fluid. Help?
Great question: This is actually an area of great interest for research. Smoking is thought to contribute to weaknening of the arteries and this is an important risk factor. We are actually pursuing research on hormones and their role in the strength of blood vessels. Please see brain aneurysm center for women at www.Chicagoaneurysm.Com for more information. ...Read moreSee 1 more doctor answer
6'1, 160 LB male. Echo showed Aorta root diameter of 32 mm. Normal size? Exercise heavily and regularly, can that cause Aorta to enlarge?
Here you go: Blood enters through the vena cavae, passes through the right atrium into the right ventricle. The blood then goes out into the lungs and returns via the pulmonary veins to the left atrium. That blood then goes out the left ventricle to the body and returns via the vena cavae. The order of blood vessels is great vessels, arteries, arterioles, capillaries, venules, veins and back to the cavae. ...Read more
Sympathetic nerves: During exercise the sympathetic nervous system is stimulated. The catecholamines released as well as direct stimulation on the heart result in a faster heart rate as well as increased contractility which raises cardiac output. This increases the rate of volume/pressure rise into the vasculature (dp/dt). This increases bp. ...Read more
Blood pressure: if flow is kept constant then decreased cross sectional area of the vessel will necessarily need increased pressure to maintain that constant flow. There are multiple factors involved in the physiology of pressure, flow and resistance ...Read more
Ultrasound shows features of chronic total radial artery occlusion with collateral flow in ulnar artery. Can this affect pregnancy.
Not likely BUT...: If the radial artery occlusion is an isolated finding, perhaps from an old injury, then there should be no risk to the pregnancy. However, if you are, or were, a very heavy cigarette smoker and especially if you are diabetic then your radial artery problem could be a symptom of a more general vascular pathology which could have a negative impact on your pregnancy. ...Read more
Depends: Coronary steal from unligated side branches from the left internal mammary artery (lima) when it is used for coronary bypass is an area of open debate. Most surgeons will ligate a large side branch to prevent the possibility of steal, small branches are often not (the risk of ligating higher than the liklihood of steal). The exact size that requires ligation to prevent steal is unknown. ...Read moreSee 1 more doctor answer
How to differentiate between anomalous pulmonary venous return & transposition of great vessels as the underlying disease?
Ultrasound: Pediatric cardiologist use ultrasound (an echocardiogram) to identify the type of congenital heart defect. In anomalous pulmonary venous return, the pulmonary veins do not connect to the left atrium in a normal manner. In transposition of the great arteries, the aorta is connected to the right ventricle and the pulmonary artery is connected to the left ventricle (backwards). ...Read more
Bruise: The most common manifestation of an injured blood vessel is a collection of blood in the area. Typically this is a simple bruise although it can be more extensive, forming a hematoma or ecchymosis. ...Read more
Can an MRI of head done with and without contrast visualized blood flow through vessels in brain?
MRI with contrast : Yes. This is an acceptable way to visualize the blood vessels of the beain. ...Read more
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